Improvement in the manufacture of artificial stone



COATING UR ILASHU UNITED STATES I JJ I I PA'rnfi'r Orrron.

MATTHEW T. HAGEN, OF BROOKLYN, NEW YORK, ASSIGNOB OF THREE- EIGHTHS HIS RIGHT TO ANDREW J. CRAWFORD, OF SAME PLACE.

IMPROVEMENT IN THE MANUFACTURE OF ARTIFICIAL STONE.

Specification forming part of Letters Patent No. 133,774, dated December 10, 1872.

To all whom it may concern:

Be it known that I, MATTHEW T. HAGEN, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in the Manufacture of Artificial Stone, of which the following is a specification:

This invention has for its object the production of a composition of matter which'shall set, giving a hard, firm, and durable stone, which shall possess a great degree of strength, in reference to tensile strain, shall be lighter or heavier for a given bulk accordingly as the several ingredients are used in varying proport-ions, and shall be admirably adapted for molding ornamental designs, blocks for building purposes, tiles for paving, and for such other purposes as compositions of this class are employed.

The substances used in forming this composition are 11 -draulic cement, massicot, ashes;

pulverized Hint-roe]: or Quartz, antIsan tus Thehydraulic cemen s emp oye are For an( Louisville Rosendale, Pozzuglana, illlt er weIl-IZnown cemen s o Slllll ar 0 aracter and properties, which act as the cementing or bindin g mediums. Portland is the cement I prefer to use, and its average weight should be one hundred and eighteen or one hundred and twenty pounds to the-bushel.

As an additional cementing medium I employ the ellow protoxide of lead. known as massicog nl'e tlnr article, asbestus, I use in two Terms, and for two distinct purposes: first, if I require a block to bear a tensile strain, I usethe asbestus in a fibrous or filamentous condition, in which state it performs afunction akin to the hair used in common mortar; but if I desire a stone which shall be of light weightin proportion to its size or bulk, I reduce the asbestus to as fine a powdtg as is practicable. The fourth article, viz., int-rock maybe pgepare d by b sca IlQElli!) .Q...QlQ IY -finally powder yncingpungriieum other manner.

aving ii'dt'ed the above, the several ingredients, and the functions they perform in the compound, I will now recite the formula for several different qualities of the compound or artificial stone, premising that quantities of the ingredients maybe somewhat varied, and

the mode of mixing changed without departing from the spirit of my invention.

or a stucco or for molded articles, take of- For huildin g-blocks and similar articles, take Portland cement 15 volumes.

Massicot 5 Fibrous asbestus. Pulverized flint 0r quartz 5O Sand *or sidewa llgg pavements, 830., take ofydrauhe cement 8 volumes. Massicot 4 Fibrous asbestus 8 ulverized flint or quartz 4O ine sand.

In forming the plastic mass the pulverized quartz, asbestus, and sand are intimately mixed, after which the hydraulic cement is added, mixed with the other ingredients, and sufficient vater used to bring the mass into a plastic state. e massicot is then mixed with linseed or othcrsuitable oil and thoroughly worke into the plastic mas ,when the compound is completed, and may be molded or worked up in any desired way. The ocks or other articles may then he finished by a u p Having thus described my invention, 1 claim- A composition or artificial stone composed of hydraulic cement, massicot, asbestus, and pulverized flint, quartz, or sand, substantially as herein described.

In testimony that 1 claim the foregoing 1 have hereunto set my hand this 22d day of November, 1872.

MATTHEW T. HAGEN.

Witnesses:

CHAS. J. JAMES, A. J. CRAWFORD. 

